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We have customers with tens or hundreds of thousands of applications, and we have a scheduler running that sets application fields to `announced` as true. However, every time it runs, it queries the entire table, which is slow and causes database connection acquisition issues. To make it faster, we added a partial index to the table.
18 lines
396 B
JavaScript
18 lines
396 B
JavaScript
'use strict';
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exports.up = function(db, cb) {
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db.runSql(
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`
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CREATE INDEX IF NOT EXISTS idx_client_applications_announced_false ON client_applications (announced)
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WHERE announced = FALSE;
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`,
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cb,
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);
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};
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exports.down = function(db, cb) {
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db.runSql(`
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DROP INDEX IF EXISTS idx_client_applications_announced_false;
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`, cb);
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};
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